Primary StackPythonLangChainLangGraphRAGAIReactReact NativeNext.jsNode.jsJava

Senior Full-Stack Engineer & AI App Developer

Sajid Mohammed

I build full-stack systems: React and Next.js front ends, Node.js and Python services, and — most recently at Walmart — a LangGraph-orchestrated assistant backed by a RAG retrieval pipeline. I also work in Java where the stack calls for it.

I care about clean architecture, measurable performance, and code a team can still work in a year from now.

LangGraph + LangChain

Composable orchestration for production RAG flows and agent handoffs.

AI copilots & RAG

Retrieval grounded assistants with evaluation loops and safety rails.

React, Next.js & Native

Web apps tuned for performance and SEO, plus React Native builds for Android and iOS.

Python · Node.js · Java

Back-end services, automation, and integrations across modern stacks.

Connect

Current focus

AI copilots · full-stack delivery

Stack in play

LangChain
AI agents
Java
Python
Next.js
React
React Native
Node.js
Frame the product in a 5-day discovery sprint
Ship weekly drops with working software
Leave behind clear docs your team can own

11+

Years crafting products

from early PHP builds to enterprise React/Next.js platforms

6

Full-stack roles

Startups through enterprise scale at Walmart

Open

To new opportunities

exploring senior engineering & AI app development roles

Millions

Weekly users served

Associate-facing experiences shipped at Walmart

End-to-end expertise for resilient digital products

From framing the opportunity to keeping production steady, I bridge strategy, engineering, and operations so every release compounds.

Pillar 01

Product framing with outcomes first

Connect research, market signals, and stakeholder intent into a roadmap that protects focus and momentum.

  • 5-day discovery sprints to crystallize user pains and outcomes
  • Hypothesis backlogs prioritized with measurable signals
  • Decision logs that keep sponsors aligned on trade-offs
Pillar 02

Architecture built for resilience

Design modular systems and infrastructure that handle growth, compliance, and new surfaces without drama.

  • Composable service, data, and AI layers with clear contracts
  • Performance, security, and reliability patterns baked in
  • Telemetry, tracing, and alerting set up before launch
Pillar 03

Delivery that ships calmly

Blend pairing, automation, and rituals so teams keep momentum from kickoff through launch and iteration.

  • CI/CD workflows and quality gates that catch regressions early
  • Dual-track rhythms balancing discovery, delivery, and feedback
  • Incident runbooks and on-call support for calm releases
Pillar 04

Enablement that sticks

Leave every project with the team empowered, informed, and ready to scale the next chapter.

  • Analytics loops instrumented to prove adoption and ROI
  • Hands-on pairing and playbooks to level up teams
  • Product ops cadences that sustain momentum post-launch
Next steps

Open to what's next

I bring the same rigor to a new team that I bring to production systems — clear scope, steady communication, and outcomes you can measure.

Reach out and I'll get back within 24 hours.